Spool



C. E. EHNBORN.

SPOOL.

APPLICATION FILED OCT. 22, 1919.

. 1,346, l 17 Patented July 13, 1920.

www1/eases; 12F/W9C rzvenibra ,6. {fili-642 UNITED STATES PATENT OFFICE.

GLEMENS E. EIINIBORN, OF GHI-CAGO, ILLINOIS.

`Spools, of which the following is a specilication.

My invention relates to improvements in spools, and has for its object the provision of an improved construction of this character providing a composite spool of simple construction and strong and durable in use.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to' the accompanying drawings forming a part of this specification, and in which,-

Figure l, is a side view, shown partially in section, of a spool embodying the invention,

Fig. 2, an end view of said spool,

Fig. 3, a detail view of one end of the spool illustrating the form and arrangement of the parts at a preliminary stageof the manufacture,

Fig. 4l, a perspective view of one of two filler heads employed in the construction,

Fig. 5, a detail view of one of two locking rings employed in the construction, and

Fig. 6, a detailed section of a slightly modified form of construction.

The preferred form of construction, as illustrated in the drawings, comprises a central hub 6 of wood or the like, and having reduced cylindrical projections 7 at each end, there being a peripheral locking groove 8 formed at the base of each projection.

Sheet metal flanges 9 are secured to each projection 7 said flanges being provided with central hubs l adapted to fit snugly over said projection 7, as indicated. After the hubs ll() have been placed in position over projections 7, the inner portions of said hubs are spun inwardly into the corresponding groove 8 and a split locking ring .ll is forced over each flange hub and is seated in each groove thus formed therein, the groove being deep enough, as shown, to accommodate said lockingfring and bring its outer periphery flush with the outer periphery of the fiange hub. Then, filler heads l2, of

Specification of Letters Patent.

Application filed Getober 22, 1919.

Patented July 13, 1920.

Serial No. 352,426.

wood or the like, and having central bores i3, are fitted over the flange hubsand lockin g rings, as shown. Each of the flanges 9. is provided with a peripheral flange la'fitting snugly about the periphery of the corresponding filler head l2, and the filler heads are further secured in place by spinning the eXtreme edges l of the flanges lll over the edges of the filler blocks, as shown.

In the modified form of construction villustrated 1n F ig. 6, the flanges 9 are provided j with hubs lll shorter than the projections 7,

said hubs ll being spun into peripheral grooves in said projections and held in place by the filler blocks l2, asshown.

By this arrangement, a composite spool is provided which may be made of considerable size, is light in weight and strong and durable in use.

W'hile I have illustrated and described the preferred form of construction for carrying my invention into effect, this vis capable of variation and modification without departing Lfrom the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to availgmyself of such variations and modifications as come within the scope of the appended claims.

Having described my invention, what l claim as new and desire to secure by Letters Patent is l. A spool comprising a hub of wood or the like having a reduced cylindrical projection at each end, there being a peripheral groove at the base of each projection; sheet metal flanges having central hubs fitted snugly over said projections and spun into said grooves; and rings seated in the grooves thus formed in the hubs of said flanges, substantially as described.

2. A spool comprising a hub of wood or the like having a reduced cylindrical projection at each end, there being a peripheral groove at the base of each projection; sheet metal flanges having central hubs fitted snugly over said projections and spun into said grooves; and split rings seated in the grooves thusformed in the hubs of said flanges, substantially as described.

3. A spool comprising a hub of wood or the like having a reduced cylindrical proj ection at each end, there being a peripheral groove at the base of each projection; sheet metal 4lianges having central hubs fitted tially as described.

" V 4. A spool comprisinga hub of Wood or K the; like having a reduced cylindrical pro-` jection at each end, there being a peripheral groeve at the base of each projection; sheet metal flanges `having central Vhubs Yfitted snugly over said projections and'spun into said grooves; split rings seated in Y the grooves thus formed in the hubs of said flanges; and filler heads having central bores fitted "snugly over the hubs .of said flanges and said split rings, said flanges beingprovidedwith peripheral flanges spun over the edges of said filler heads,substan 5. A spool. comprising a hub of Wood or the like, having a reduced cylindrical projectionat each end, there being a peripheral groove at the base of each projection; and

sheet' metal anges having central hubs fitted over said projections and spun into said grooves, substantially as described.

6. A spool comprising a hub ofwvood or the like having a reduced cylindrical proj ection at eachend; there beinga peripheral `groove at the base of each projection; sheet metal flanges having central hubs `fitted over said projections and spun into said grooves; and .filler heads having central `bores fitted snuUl f over said uro'eetions and hubs subb D A stantially as described.

in testimony whereof I have signed my EHNB ORN.

name to this specification in the presence ofV tivo subscribing Witnesses. Y CLEMENS E. VWitnesses: i JosHUA R. HQ YPorrs, LAURA ERICKSON. 

